By brute force analysis, it seems to me that we can easily
remove these not used includes.
It passed "make check install"

Change-Id: I34ea2aae57e56fb8b2cf1066cf51b08068fa0b53
Reviewed-on: https://gerrit.libreoffice.org/41312Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Jochen Nitschke <j.nitschke+logerrit@ok.de>